Percentage Increase & Decrease Calculator

Calculate percentage increases and decreases with our interactive calculator. Perfect for tracking changes in prices, values, metrics and more.

Interactive Calculator

Enter your original and new values to calculate the percentage change.

Original Value

New Value

No change detected

Enter values to see the percentage change

((New Value - Original Value) ÷ Original Value) × 100

For example, if a price increases from $80 to $100:

((100 - 80) ÷ 80) × 100
(20 ÷ 80) × 100
0.25 × 100
= 25% increase

((Original Value - New Value) ÷ Original Value) × 100

For example, if a price decreases from $100 to $75:

((100 - 75) ÷ 100) × 100
(25 ÷ 100) × 100
0.25 × 100
= 25% decrease